外加磁场辅助激光焊接的研究现状及展望  

Current Research Status and Prospects of External Magnetic Field Assisted Laser Welding Technology

作　　者：檀财旺[1,2] 徐炳孝 刘福运 陈波 宋晓国[1,2] TAN Caiwang;XU Bingxiao;LIU Fuyun;CHEN Bo;SONG Xiaoguo(State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology,Harbin 150001,China;Shandong Provincial Key Laboratory of Special Welding Technology,Harbin Institute of Technology at Weihai,Weihai 264209,China)

机构地区：[1]哈尔滨工业大学先进焊接与连接国家重点实验室,黑龙江哈尔滨150001 [2]哈尔滨工业大学(威海)山东省特种焊接技术重点实验室,山东威海264209

出　　处：《热加工工艺》2023年第19期1-6,13,共7页Hot Working Technology

基　　金：国家自然科学基金项目(52074097,52005132);山东省自然科学基金项目(ZR2019PEE038)。

摘　　要：作为一种易于添加又便于实施的外加能场,磁场被引入激光焊接过程中,会改变带电流体的流动状态,对等离子体形态、熔滴过渡、熔池流动及匙孔行为产生影响,进而对焊缝成形组织、接头性能及焊接过程稳定起到促进及改善作用。通过归纳国内外磁场辅助激光焊接的研究成果,总结了外加磁场对激光焊接的作用机理,及其对激光焊接过程特征及接头组织、缺陷及性能的影响规律,并对磁场辅助激光焊接的未来发展进行了展望。As an easy-to-add and easy-to-implement external energy field,the magnetic field introduced into laser welding process can change the flow state of the current-carrying fluid,and affect the plasma morphology,droplet transfer,molten pool flow and keyhole behavior,thereby promoting and improving the weld structure,joint performance and welding process stability.The research results of magnetic field assisted laser welding in China and foreign countries were summarized,and the mechanism of the external magnetic field on laser welding and its influence on the characteristics of the laser welding process and the structure,defects and performance of the joint were summarized,and the future development of magnetic field assisted laser welding was prospected.

关 键 词：外加磁场 激光焊接 等离子体 匙孔 焊接缺陷 

分 类 号：TG456.7[金属学及工艺—焊接]